Fuel saver



July 24, 1923.

J. W. GREEN FUEL SAVER Filed March 27. 1922 [A/l/E/VTOJB. ef-Mf' Green).

July 24, l233s Ul lll stares JOHN W GREEN, OF COLUMIBUS. OHIO.

FUEL SAVER.

Application filed March 27, 1922.

T 0 all whom it may concern Be it known that l JOHN W. @nnnN, a citizen of the United rat-ates, residing at C0- lumbus, in the county 0t Franklin and E tate Ohio, have invented. certain new and useul Improvements in Fuel Savers, of Which he following is a specification.

hiy invention relates to a device forming an accessory to kitchen range or a hot plate and the main object of the invention is to provide a device for saving fuel and more particularly gas.

With this object in view I cc: triurt fuel saver so that it Wlll conduct the gas from the burners upward and to prevent all escape thereof in side direction.

Furthermore 1 construct the device, so as to limitthe air admission to What is needed for proper combustion and so that no cold air can come near the flame the bottom of a. cooking utensil placed over the burner.

The device is built in different sizes, so as to be suitable for the smallest pans as Well as the largest Water tanks.

Although the fuel saver is intended mainly for gas ranges, it is equally Well suited for saving oil and other liquid or gaseous fuels.

In the accompanying drawing one embodiment of the invention is illustrat -d; and

Figure 1 shows a transverse section of the fuel saver suspended from the top of a gas range;

Figure 2 is a fragmentary perspective view of the gas saver; and

Figure 3 is top plan view of a gas range with my device attached.

The gas saver consists oi a casing 10 preferably made of thin plate and in the shape or" an inverted conic frustum and is provided at its upper ed e with a number or fingers 11. A skeleton frame 12 preferably circular and adapted to fit the apertures provided in the top 18 of a gas range 1 1 has an inner ring 15 around which the fingers 11 are bent to provide very rigid and secure connection between the frame 12 and the casing 10. The frame 12 has preferably a number of radial ribs 16 for supporting cooking utensils.

Eerial No. 546,896.

The inner and outer surfaces of the casing 10 have asbestos lining 18 which is intended to preserve the heat and prevent all radiation from the casing The casing is of such a size hat it its very closely over a gas burner 19 i order that no air but What; is adniitted 'Ironi the bottom of the casing Will pass the burner. The casing is preferably prtwided with an opening 20 in order that it may ride coinfortably over a gas pipe 21 admitting the gas to the burner 19.

As will be evident from Figure l, t casing extends sulticiently far below tue burner 19 to prevent all loss of heat in that direction and the upper opening of the casing is substantially of the size of the bottom of the cooking utens l for which it is intended so that no cool air is admi under the bottom thereof and only sull" .t quantity of air for the proper combustion of the fuel admitted from the bottom of the casing.

In some cases it might be necessary to pro vide a number of indentations in the lower edge of the casing to accommodate pipes or bars near the burner.

Having thus described the invention What is claimed as new is:

fuel saver for burners of stoves comprising a thin metallic casing in the shape of ahollow inverted conic trustum, gripping fingers rising ot' the casing to pass over and around a skeleton frame in the top of a stove, both the inner and outer sides of said casing being covered with refractory material, said casi adapt ed to cnclosi i1 fuel burner so th. iis loner end extends below the burner and its upper edge is disposed close tot-he skeleton fr I the lower edge of the ca 7 being, provided with an openii'ig' to span the burner supply pipe, and notches to accommodate elements of the stove structure.

In testimony whereof I aflix my signature.

from the upper ed) JOHN W. GREEN 

